Question

3x +2y = -12 e 5x +6y=5

Answer 1

Oi Victoria

3x + 2y = -12
5x + 6y = 5 

9x + 6y = -36
5x + 6y = 5

9x - 5x = -36 - 5
4x = -41

x = -41/4 

-123/4 + 2y = -48/4
2y = (123 - 48)/4 = 75/4

y = 75/8 

S = (-41/4, 75/8)